News and articles from Topstar

When a sprue picker lacks sufficient vertical stroke, it often leads to unstable part extraction, inconsistent part release, and production cycle delays. Topstar’s sprue pickers feature two distinct designs: single-stage and telescopic. Manufacturers can select the appropriate model based on mold height, machine dimensions, and the specific distance required for safe part extraction. The telescopic… Continue reading Topstar Sprue Picker: Features a telescopic arm design to resolve vertical stroke limitations

Frequent material changeovers, diverse product requirements, and high-volume orders all demand more flexible drying systems. Traditional single-hopper dehumidifying dryers often create bottlenecks because they can only process one type of material at a time, at a fixed temperature setting. Consequently, operators are forced to wait during cycle intervals or purchase multiple independent drying units—solutions that… Continue reading Double hopper Design: A Dehumidifying Dryer Suitable for Drying Multiple Materials

Different plastics absorb and release moisture at varying rates; a one-size-fits-all drying approach can lead to waste, defective parts, and process deviations. Therefore, it is essential to configure hopper dryer drying times based on the material type, ensuring the plastic material reaches its optimal processing state before melting. All Topstar hopper dryers are equipped with… Continue reading Adjusting Drying Time: How to Configure a Hopper Dryer for Different Plastic Types?

When injection-molded parts are ejected from a mold, their orientation may shift due to factors such as mold design, ejection force, cooling variations, or part geometry. Consequently, the gate—the point where the part connects to the runner system—may end up at an inconsistent angle or position, thereby complicating automated handling and assembly processes. Traditional injection… Continue reading Topstar Swing Arm Robot: Fixing Uneven Sprue Placement with 90° Wrist Rotation

In injection moulding, depending on material properties and process requirements, different mould temperature controllers settings, such as 120°C, 160°C, or 180°C, may be needed to achieve optimal moulding performance. This is because injection moulding typically involves a variety of materials, from general-purpose plastics to engineering polymers. Each material has specific requirements for mould heating and… Continue reading 120℃/160℃/180℃: Which mould temperature controller is suitable for your injection molding process?

Nitrided steel screws undergo a special surface treatment that provides superior hardness, wear resistance, and long-term dimensional stability. This allows manufacturers to process a wide range of materials, including abrasives, reinforced materials, and engineering plastics, while maintaining consistent product quality and machine performance. In Topstar’s hydraulic injection molding machine, nitrided screws deliver reliable plasticization and… Continue reading Advantages of nitrided steel screws: Suitable for hydraulic injection molding machine processing various materials

Injection molding production relies heavily on the precise fit between the mold and the injection molding machine. Among all operating parameters, clamping force is one of the most critical factors affecting mold safety, product quality, and machine stability. When the clamping force of the molding machine does not match the mold requirements, various problems can… Continue reading Molding Machine Troubleshooting: Repairing Mold Damage Caused by Clamping Force Mismatch

When performing non-standard insert movements, such as angular insertion, deep cavity placement, multi-step orientation, or combined handling and assembly, the mechanical structure and control system of injection molding robots require extremely high precision. In Topstar’s MDE series of robotic arms, the AC servo injection molding robot combines a servo drive platform with a main arm… Continue reading Advantages of Q235 steel arm: Enables injection molding robots to perform various non-standard insert motions

Precise temperature control in the injection moulding dryer ensures stable part quality and reduces scrap rates. For materials such as PA, PET, and PBT, the ±1℃ temperature control range in injection moulding dryers often determines whether dimensional tolerances or product mechanical properties meet standards. For users new to our dryers, we will explain here how… Continue reading How to Calibrate the PID Controller of Topstar Injection Moulding Dryer for 1℃ Temperature Accuracy?

In most manufacturing plants, water contains high concentrations of calcium and magnesium ions. When these dissolved minerals are heated within the mould temperature controllers, they precipitate and gradually form scale on the heater surface, pipe walls, and mould channels. Over time, scale buildup narrows pipe diameters, reduces heat transfer efficiency, increases pump load, and ultimately… Continue reading How to solve the problem of blockage in the mould temperature controllers’ pipeline?

Even minor positional deviations during demolding in injection robots can trigger alarms, interrupt production cycles, damage molds, or reduce part quality. These problems typically stem from inconsistent ejector positions, mismatched gripping timing, or mechanical tolerances accumulated over long production cycles. Traditional injection molding robot systems heavily rely on preset positions and fixed times, making them… Continue reading How can injection robots achieve automatic tracking to solve the problem of positional deviation?

Residual trace moisture in hygroscopic raw materials such as nylon, PET, or PBT can reduce melt quality, shorten plastic mold life, and increase waste. Topstar’s cabinet dryer solves this problem through intelligent timing, robust safety features, and precise temperature control. With a built-in 24-hour timer, adjustable airflow, PID temperature control, and a multi-layer protection system,… Continue reading 24-hour timer function: Topstar cabinet dryer can achieve timed drying